EAN for internal applications
The EAN system provides other number series for internal applications (stores, hospitals,…).
Those numbers will have a prefix, determined by EAN, followed by an Internal Number, chosen by
the company concerned. The uniqueness of those specific numbers is only guaranteed within that company.
The EAN-13 structure is then :
|EAN Prefix||Internal Number||Check Digit|
|2 digits||10 digits||1 digit|